分析EAF底电极不导电的原因,如何防止?

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问题:

分析EAF底电极不导电的原因,如何防止?

考点:炼钢工电炉炼钢工高级电炉炼钢工高级题库
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阅读理解

     This is our classroom.  It's a nice big room.  The windows are big and the walls (墙) are white.  There

is a map of China on the back (后面的) wall. 

     There is a big desk.  It's for the teacher.  There are some flowers on the teacher's desk.  They are for

our teacher.  She is a good teacher.  We like her. 

     There are forty small desks and chairs in the classroom.  They are for us students. 

1. This is our _____.

A. library

B. school

C. classroom

D. family

2. _____ are white.

A. The chairs

B. The desks

C. The blackboard

D. The walls

3. _____ is on the back wall.

A. A map of China

B. A map of the world (世界)

C. A picture of our classroom

D. A picture of our school

4. _____ are on the teacher's desk.

A. Some flowers

B. Some pictures

C. Some books

D. Some maps of China

5. There are _____ students in our class.

A. 14

B. 40

C. 30

D. 20

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1 mol某烃在氧气中充分燃烧,需要消耗氧气179.2 L(标准状况下)。它在光照的条件下与氯气反应能生成3 种不同的一氯取代物。该烃的结构简式是[ ]

A.

B.

C.

D.

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触电伤员呼吸微弱或停止时,应立即通畅触电者的气道。( )用枕头等物垫在伤员头下;手指不要压迫伤员颈前部、颏下软组织,以防压迫气道。

A.应立即

B.可以

C.严禁

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( )是银行业金融机构在反洗钱方面应承担的义务。

A.建立内部反洗钱机制及工作流程

B.及时报告大额和可疑交易

C.建立客户身份资料和交易记录

D.协助反洗钱调查

E.对反洗钱工作信息保密

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未损伤骨盆后部负重弓者,伤后几周练习下肢肌肉收缩及踝关节屈伸运动()。

A.第1周

B.第2周

C.第3周

D.第4周

E.第6周

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